I honestly can't remember the last time I did homework at home (obviously having left Sixth Form in May for my last exams would have played a part, but before that we were rarely given homework, and any that we were given I completed in my frees when I didn't have any money for the Pool table), but if I'm programming I'll have my whole collection playing at random - I can go from Rimsky-Korsakov to Kings of Leon to The Lancashire Hotpots. If I need to really concentrate, though, then I do it in silence. Otherwise, I can listen to anything I've got and be able to work though, like WW, what I do listen to and not skip depends on my mood.

As a general thing, soft, Classical music is thought to be the best music to listen to when working.